Data 181 (Scanned WID3xx Beacon Data)

The Beacons information collected by terminal. Each Beacon occupies 10 bytes, including Type, MAC, RSSI, Voltage.

Note: WID3xx Beacon refers to WID310.

The frame format of the Data 181 unit is as follows:

For example (Total 14 bytes):
80 B2 0B 01 0C 12 34 56 78 90 AB BB 0C 80

Parts

Fields

Length (Byte)

Range/Format

Default

ID

Data ID

2

80B5H (181)

80B5H (181)

Length

Data Length

1 or 2

00H-7FH or 8080H-80FFH

Content

Number

1

00H-FFH

The first Beacon

Type

1

MAC

6

RSSI

1

80H-FFH (dBm)

Voltage

2

0000H-FFFFH (mV)

  • Number

    Indicates how many Beacons the following data comes from.

    If the value of this field is 00H, no other fields are included.

  • Type

    Indicates the type of the Beacon. It is refer to the parameter ‘Type’ in AT@BTBCN command.

    For example, 0DH (i.e, 13) means the type is WID310.

  • MAC

    The MAC address of a Beacon.

    For example, 1234567890ABH means the MAC address 12:34:56:78:90:AB.

  • RSSI

    The received signal strength.

    Expressed as an 8-bit signed integer and the unit is dBm. When the RSSI value is less than -128 (80H), it is also filled in as 80H, and when the RSSI value is greater than -1 (FFH), it is also filled in as FFH. In particular, 63H means the signal strength is not known or not detectable.

    Typical values are as follows:

    Value

    Signal Strength (dBm)

    Level

    A7H to 80H

    -89 or less

    0

    A8H to ADH

    -88 to -83

    1

    AEH to B4H

    -82 to -76

    2

    B5H to BEH

    -75 to -66

    3

    BFH to FFH

    -65 or greater

    4

    63H

    Not known or not detectable

    /

  • Voltage

    The current battery voltage of the Beacon.

    Expressed as a 16-bit unsigned integer and the unit is mV. In particular, 7FFFH means that the terminal cannot obtain this data currently.

    For example, 0C80H means 3200mV.